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CEO of Irish low-cost airline Ryanair Michael O'Leary grimaces as he speaks during a press conference, on March 29, 2012 in Brussels. O'Leary, named in the Bloomberg article, is particularly well known for his coarse language. - 

Apparently, and this kind of stands to reason, the use of profanity by CEOs varies with economic conditions.

Bloomberg actually went through and did a word search of earnings call transcripts for the past 10 years. Profanity peaked in 2010, dipped a bit, shot up again in 2012 and has been declining ever since.

I know you want to know what the words are, but I really need my job.

There's a chart that'll give you the details, though:

Cursinggraphic
A screenshot of Bloomberg's graphic on CEO cursing. For more detail, see the full graphic. - 
Follow Kai Ryssdal at @kairyssdal